Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Keyless Access Backup Control Unit (Body Control Module)
2023 Acura MDX BaseSECTION Keyless Access Backup Control Unit (Body Control Module)
| DTC | Description |
|---|---|
| DTC Troubleshooting: B1926 (Keyless Access Backup Control Unit) | Backup Control Antenna Open or Short |
| DTC Troubleshooting: U1280 (Keyless Access Backup Control Unit) | B-CAN communication bus line error (BUS-OFF) |
| DTC Troubleshooting: U128D (Keyless Access Backup Control Unit) | BCM lost communication with gauge control module |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.